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PatchSiren cyber security CVE debrief

CVE-2026-76198 Adobe CVE debrief

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could lead to arbitrary file system read. An attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope. Exploitation of this issue requires user interaction in that a victim must open a malicious file. The CVE record was published on 2026-08-25T18:18:05.253Z and has not been modified since then. Users of CAI Content Credentials, administrators of affected systems, and security teams monitoring file system access should take action to verify and monitor file system access controls, implement input validation and sanitization for file system interactions, and review compensating controls for exposed systems while remediation is scheduled and verified. This vulnerability has a medium CVSS score of 5.5 and is classified as a medium-priority vulnerability with limited attack surface.

Vendor
Adobe
Product
C2PA Tool
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-08-25
Original CVE updated
2026-08-26
Advisory published
2026-08-25
Advisory updated
2026-08-26

Who should care

Users of CAI Content Credentials, administrators of affected systems, and security teams monitoring file system access should take action to verify and monitor file system access controls, implement input validation and sanitization for file system interactions, and review compensating controls for exposed systems while remediation is scheduled and verified. This vulnerability has a medium CVSS score of 5.5 and is classified as a medium-priority vulnerability with limited attack surface.

Technical summary

CAI Content Credentials is affected by an Improper Input Validation vulnerability that could lead to arbitrary file system read. An attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Affected product context indicates that users of CAI Content Credentials, administrators of affected systems, and security teams monitoring file system access should take action.

Defensive priority

Medium-priority vulnerability with limited attack surface; verify and monitor file system access.

Recommended defensive actions

  • Verify file system access controls and user interaction logging.
  • Monitor for malicious file openings and sensitive file accesses.
  • Implement input validation and sanitization for file system interactions.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review.
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented.
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

Official CVE Program record and NIST NVD detail page provide limited information; verify file system access controls and user interaction logging. Check relevant monitoring, detection, and logs for exposed assets that need extra review. Track exceptions, retest remediated assets, and close the item only after evidence is documented.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-76198 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-76198

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-76198 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-76198

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.